After reading this months article on deviding your pond with netting to create a nursery, I had an idea. I have always intended on creating a shallow 2' gravel area with some cover to foster a healthy spawn for my forage fish. Could a person place a barrier that would devide the spawn area from the main pond that would allow the BG through, but keep the larger LMB at bay? (I was thinking fencing that is basically rows of vertical rectangles that are about 1"x 4" and a few boulders)

Would this hender the spawn? Would the areation still be effective in this area with the boulders acting as a partial wall? Am I creating a Heron picnic table?

Thanks,

Joe